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Co-Occurring Disorders and Intensive Outpatient Care

Co-occurring disorders describe a mental health condition and a substance use condition happening together. Programs describe themselves as treating both in very different ways, so the useful question is how integration actually works in practice.

Medical reviewer

Brandon McNally, RN

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What integrated treatment means

Integrated treatment generally means a single team addresses both conditions together rather than treating them as separate problems in separate places. In practice, that involves a shared treatment plan, clinicians trained in both areas, and coordinated medication decisions where relevant.

  • One treatment plan covering both conditions
  • Group programming that addresses the interaction between them
  • Access to psychiatric evaluation and medication review
  • Communication between the therapy team and any prescriber

How to tell whether a program really integrates care

  1. Ask whether both conditions are addressed in the same track or in separate services
  2. Ask what training group facilitators have in both areas
  3. Ask how the program handles medication for a mental health condition alongside substance use treatment
  4. Ask what happens if one condition worsens during the program
  5. Ask how continuing care addresses both after discharge

Language on a website is not evidence of integration

Many programs use the phrase 'dual diagnosis' broadly. The answers to specific operational questions reveal more than the label does.

Frequently asked questions

Should one condition be treated first?

Current practice generally favors treating both together rather than sequentially, but the right approach for an individual depends on clinical assessment, including safety and medical needs.

Are co-occurring programs harder to find?

Availability varies by region and by age group. Virtual programs sometimes widen the options when local integrated programming is limited.

What if a program only treats one condition?

Ask how it coordinates with providers who treat the other, who is responsible for that communication, and how conflicting recommendations would be resolved.

Sources and references

We cite government agencies, professional bodies, and peer-reviewed research. Entries marked below still need a citation attached before this page is treated as fully sourced.

  1. 1.Levels of care definitions for outpatient behavioral health services — Federal behavioral health agency guidanceCite the current agency definition of intensive outpatient services, including hours-per-week ranges.Source required before publication
  2. 2.Criteria used by clinicians to match a person to a level of care — Professional society placement criteriaCite the current published placement criteria edition and section.Source required before publication
  3. 3.Parity requirements for mental health and substance use benefits — Federal health-benefit regulatorCite the current parity rule text rather than a summary article.Source required before publication
  4. 4.988 Suicide & Crisis Lifeline — National crisis line

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